He's a charmer. He's very social. He interacts with people all the time to the point where he doesn't care about his toys much. It's adorable.
I've actually modified his appearance a little bit because I had the idea to make him the Sims 4 counterpart of one of my Sims 3 characters (who is an adult). They have the same expressions, even comparing the Sims 4 toddler with the Sims 3 adult, I recognize him. Even more in the first picture, it's just incredible. I love it ! (But I can't post pictures because he's a character from a future story, so I keep them for myself until it's ready for being published) I find it really cool how easy it is to recognize the future adults in toddlers. It's strange but I find it somewhat more difficult with children than with toddlers because children's faces look less differentiated than toddlers' faces to me.